NASCLA COMMERCIAL BUILDING EXAM QUESTIONS AND
ANSWERS GRADED A+ 100% VERIFIED.
What is the minimum ceiling height for means of Egress? ANS >>> Not
less than 7 feet 6 inches
Emergency Power must illuminate for how long? ANS >>> No less than 90
minutes
Elevators are required in a building with how many stories? ANS >>>
More than 3 (or at least 4).
What is the size of the refuge space for one wheel chair? ANS >>> 30
inches by 48 inches
Each area of refuge shall be separated from the remainder of the story
by what? ANS >>> Smoke Barrier
,What is the minimum width of a door? ANS >>> 32 Inches
The minimum clear opening height of doors shall be no less than (at
least) ANS >>> 80 inches
Which direction should a hinge door swing when the building occupies
more than 50 people or is classified as Group "H"? ANS >>> In the
direction of egress
The force for pushing or pulling open interior swinging egress non fire
doors shall not exceed how many pounds? ANS >>> No more than 5LBS
Clear opening below a door should be no more than ANS >>> 4 inches
Panic hardware is required when ANS >>> There are more than 50
possible occupants
The maximum unlatching force of panic or fire hardware should not
exceed how many pounds? ANS >>> 15lbs
Stairway width for less than 50 people is ANS >>> 36 inches
Stairway width for more than 50 people ANS >>> 44 inches
,Handrails should extend passed the top riser by ANS >>> 12 inches
Maximum handrail width is ANS >>> 2 inches
Where handrails are not continuous between flights, the handrails
should extend horizontally how many inches? ANS >>> 12 inches
Clear space between handrail and wall ANS >>> 1 1/2
Required guards shall not have an opening how large? ANS >>> 4 inches
Corridor width chart can be found in what book? ANS >>> 2018 IBC (Thick
blue book) page 287
Emergency escape and rescue openings shall have the bottom of the
opening not greater than how many inches? ANS >>> 44 inches measure
from floor
Accessible parking Spaces chart can be found where? ANS >>> 2018 IBC
Page 308
Net Free Ventilating area shall not be less than ANS >>> 1/150th of the
area of the space ventilated (Page 321 IBC)
, The spacing of the ties or fastenings for exterior metal veneer shall not
exceed how many inches? ANS >>> 24 inches
Lap siding should have minimum lap of how many inches? ANS >>> 1 and
1/4 inches
Metal flashing on walls, roof intersections, no less than how thick? ANS
>>> 0.019
What class assemblies are most effective against severe fire test? ANS
>>> Class A
Asphalt shingles should only be used on roof slopes ANS >>> Of two units
vertical in 12 units horizontal (17%)
Valley lining material thickness chart can be found where? ANS >>> IBC
351
Wood Shake and Wood shingle exposure table ANS >>> IBC 352
Minimum Slope of a roof is ANS >>> 1/4: 1
Allowable deflection table can be found ANS >>> IBC 363
ANSWERS GRADED A+ 100% VERIFIED.
What is the minimum ceiling height for means of Egress? ANS >>> Not
less than 7 feet 6 inches
Emergency Power must illuminate for how long? ANS >>> No less than 90
minutes
Elevators are required in a building with how many stories? ANS >>>
More than 3 (or at least 4).
What is the size of the refuge space for one wheel chair? ANS >>> 30
inches by 48 inches
Each area of refuge shall be separated from the remainder of the story
by what? ANS >>> Smoke Barrier
,What is the minimum width of a door? ANS >>> 32 Inches
The minimum clear opening height of doors shall be no less than (at
least) ANS >>> 80 inches
Which direction should a hinge door swing when the building occupies
more than 50 people or is classified as Group "H"? ANS >>> In the
direction of egress
The force for pushing or pulling open interior swinging egress non fire
doors shall not exceed how many pounds? ANS >>> No more than 5LBS
Clear opening below a door should be no more than ANS >>> 4 inches
Panic hardware is required when ANS >>> There are more than 50
possible occupants
The maximum unlatching force of panic or fire hardware should not
exceed how many pounds? ANS >>> 15lbs
Stairway width for less than 50 people is ANS >>> 36 inches
Stairway width for more than 50 people ANS >>> 44 inches
,Handrails should extend passed the top riser by ANS >>> 12 inches
Maximum handrail width is ANS >>> 2 inches
Where handrails are not continuous between flights, the handrails
should extend horizontally how many inches? ANS >>> 12 inches
Clear space between handrail and wall ANS >>> 1 1/2
Required guards shall not have an opening how large? ANS >>> 4 inches
Corridor width chart can be found in what book? ANS >>> 2018 IBC (Thick
blue book) page 287
Emergency escape and rescue openings shall have the bottom of the
opening not greater than how many inches? ANS >>> 44 inches measure
from floor
Accessible parking Spaces chart can be found where? ANS >>> 2018 IBC
Page 308
Net Free Ventilating area shall not be less than ANS >>> 1/150th of the
area of the space ventilated (Page 321 IBC)
, The spacing of the ties or fastenings for exterior metal veneer shall not
exceed how many inches? ANS >>> 24 inches
Lap siding should have minimum lap of how many inches? ANS >>> 1 and
1/4 inches
Metal flashing on walls, roof intersections, no less than how thick? ANS
>>> 0.019
What class assemblies are most effective against severe fire test? ANS
>>> Class A
Asphalt shingles should only be used on roof slopes ANS >>> Of two units
vertical in 12 units horizontal (17%)
Valley lining material thickness chart can be found where? ANS >>> IBC
351
Wood Shake and Wood shingle exposure table ANS >>> IBC 352
Minimum Slope of a roof is ANS >>> 1/4: 1
Allowable deflection table can be found ANS >>> IBC 363
